566 Reviews — Mr. Waterhouse Hawkins's 



saurus Foulhii (Leidy) and Lmlaps aquilunguis (Cope). The former, 

 set up as a perfect skeleton, nearly erect on its hind feet and tail- 

 end but resting with its front paws against the upper boughs of a 

 tree, presents a gigantic kangaroo-like outline, with a stature of about 

 eighteen feet. It is characterized by its long, strong, many -jointed 

 tail ; its great, long, three-toed hind legs ; its short, weak, four -toed 

 front limbs, and its weird, turtle-like, big-eyed skull, — all shown, 

 together with the Eestorer, in the photograph at page 138 of this 

 Eeport. The Zwlaps figures, both in its fleshless erect skeleton 

 (twenty feet high), and in its rehabilitated form, couchant, are 

 shown in a lithograph opposite page 30. Its longer, hooked, and 

 somewhat bird-like skull, distinguishes this from its brother monster. 



The completion of the skeletons, by making good the broken 

 parts, restoring bones of one side by reversed models from the 

 opposite, and replacing strange bones aright in their relative 

 positions, is no small task of science and art ; but in setting 

 these bones and joints in the varied conditions of rest and 

 motion, and in covering them with their due envelopes of muscle 

 and integument, the artistic naturalist has had a task equal 

 to his best and boldest efforts , and he fully acknowledges, in 

 his official letters in the Eeport, that he has worked on the 

 excellent basis afforded by the scientific works of Leidy and 

 Cope (enlightened moreover by Huxley's researches), and that he 

 has throughout received the courteous and cordial co-operation of 

 the savants of the United States. Not only must Mr. Hawkins be 

 gratified in advancing the means of educational progress in America 

 in thus adding to the resources of the Central Park, but he must feel 

 great pleasure in putting bodily before our eyes the definite shapes 

 and proportions of some of the great and long unknown reptilian 

 masters of the world, whether dignified in their monstrous bulk and 

 unused power as Herbivores, or domineering as the Carnivorous 

 tyrants of their day. Showing us, too, how when they rose up like 

 giants refreshed, to prowl among the marshes and mud-banks, or to 

 feed on the dank jungles and marsh-plants, they either stalked erect 

 with upraised head, combining the gait of Ostrich and Kangaroo, 

 and leaving the bipedal trifid tracks so common in our Wealden 

 strata ; — or, crawling like a big-lagged Labyrinthodont, or somewhat 

 like the Kangaroo, prone on all fours, but making no great leaps, 

 they left quadrupedal print-marks of unequal feet, as still seen in 

 the older Connecticut Sandstone. How far, in other respects besides 

 this upright gait and three-toed hind feet, these ornithico-saurian 

 creatures resembled Birds, palaeontologists are making it their study 

 to determine.-' 



We shall indeed look forward with pleasure for other results of 

 Mr. Hawkins' scientific skill ; and we shall be very glad to be able 

 to congratulate the Commissioners of the Park on the advancement 

 of all their good intentions and excellent plans for making the Park 



1 See Prof. Huxley's Memoir in the Popular Science Eeview, July, 1868, p. 237, 

 and plates 27 and 28 ; also Ms Lecture, Geol. Mag. Vol. V. p. 357. 



